Find the last 4 digits (ZIP+4) for an address in 06831

ZIP 06831, Greenwich, CT is filled in. Just type the street address.

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ZIP Code 06831 – Greenwich, CT

Greenwich, Connecticut · Western Connecticut Planning Region · Eastern time

ZIP code06831
CityGreenwich
StateConnecticut
CountyWestern Connecticut Planning Region
Population15,210
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area27.55 sq mi
Center (lat, long)41.0887, -73.6588

Area codes in this area

203475

These are the area codes that most often serve ZIP 06831 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

10504 Armonk · 3.7 mi06830 Greenwich · 4 mi06807 Cos Cob · 4.1 mi10610 White Plains · 4.4 mi10577 Purchase · 4.4 mi06836 Greenwich · 4.6 mi10604 West Harrison · 4.7 mi10573 Port Chester · 5.1 mi

About ZIP 06831

ZIP code 06831 is assigned to Greenwich, Connecticut. It lies in Western Connecticut Planning Region. Its Census area covers about 27.55 square miles of land. The closest neighboring ZIP is 10504 (Armonk), about 3.7 miles away.

Every address in 06831 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources